From nobody Tue Nov 26 22:36:14 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=rfc1149.net ARC-Seal: i=1; a=rsa-sha256; t=1704565003; cv=none; d=zohomail.com; s=zohoarc; b=kWb2OwXLj4BAk2CqB5Q528STFIc2kMyFcmZB5FtequuB5kPWRii1s8nqp1LLzFM+vmmkT6CDFBLh7qz0LYB2xzqy4ToyHPWc0RsNEL9MxZ4sdFqQR+WtoQhocydisrWczz4H3QCPk0+Bjf5iSqcAUjAmeD1KFSb+HlZxAgeYYA4= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1704565003; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=pwne6ZRdjiy0KdXBJMIAxtpZ6iYOY3k5ka8VghVZA2w=; b=hTUaBf2p609DtzqTWS7+11jSDG3PVrjNEb5aRc8eXc2BLBIWOnGxB+H+Zg3PcFC6UD7/kFrE+Yo9RyXnLyxYDpdyLl/ofHv3NhQRbw891f95h8szbwnL82aaCywQET4raLlYSfy1f2S4ZgVhF6qpyZC2tZcbZMpjruMgGMqse+o= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1704565003388542.9129075874429; Sat, 6 Jan 2024 10:16:43 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rMBCU-0006PD-B7; Sat, 06 Jan 2024 13:15:14 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rMBCR-0006MG-Md; Sat, 06 Jan 2024 13:15:11 -0500 Received: from zoidberg.rfc1149.net ([195.154.227.159]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rMBCP-0001vz-S1; Sat, 06 Jan 2024 13:15:11 -0500 Received: from 127.0.0.1 (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (Client did not present a certificate) by zoidberg.rfc1149.net (Postfix) with ESMTPSA id 6152A80027; Sat, 6 Jan 2024 19:15:04 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=rfc1149.net; s=smtp; t=1704564904; bh=oUHxTnxbJvmbEvqdnnqwZEZn9kWgtC+tyGXnlDxve3k=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=yLEYvFldTrVhoUyXhSBunjIXabEi7otSSKeJUDbtwa67DXed7zA3oked6YwF8Q35O 3TvznjLfB02ciVDDx+fvglBOxguG0hlslc0yQbl6ZGfohjFi4HEJP0YIsRHtLrM/63 TY3Xg43Ou9ig3NmXs4OVZt7zfHaCJ1FNeWtBBPaLTMwBbHk/gmSfVYMxmixBbi8B8H DYreBykkpctFN36ccDsdzuGE0Wlp+VzMWKgV7x/KvPlcJXaHkyCofaSUfOKspN1DrB bdb+lfVtWqyU2rN0+NXtwH4UdGHeDAEX+H2fMd11VcTyKy1Mql7MG4rIyLNRgnBzlu 50YFwaTIcFaoQ== From: Samuel Tardieu To: qemu-devel@nongnu.org Cc: Anton Kochkov , qemu-arm@nongnu.org, Alexandre Iooss , Arnaud Minier , =?UTF-8?q?In=C3=A8s=20Varhol?= , Alistair Francis , Peter Maydell , Samuel Tardieu Subject: [PATCH v3 2/3] hw/arm/armv7m: alias the NVIC "num-prio-bits" property Date: Sat, 6 Jan 2024 19:15:02 +0100 Message-ID: <20240106181503.1746200-3-sam@rfc1149.net> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20240106181503.1746200-1-sam@rfc1149.net> References: <20240106181503.1746200-1-sam@rfc1149.net> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=195.154.227.159; envelope-from=sam@rfc1149.net; helo=zoidberg.rfc1149.net X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @rfc1149.net) X-ZM-MESSAGEID: 1704565005789100011 Content-Type: text/plain; charset="utf-8" A SoC will not have a direct access to the NVIC embedded in its ARM core. By aliasing the "num-prio-bits" property similarly to what is done for the "num-irq" one, a SoC can easily configure it on its armv7m instance. Signed-off-by: Samuel Tardieu Reviewed-by: Peter Maydell Reviewed-by: Philippe Mathieu-Daud=C3=A9 --- hw/arm/armv7m.c | 2 ++ include/hw/arm/armv7m.h | 1 + 2 files changed, 3 insertions(+) diff --git a/hw/arm/armv7m.c b/hw/arm/armv7m.c index e39b61bc1a..1f21827773 100644 --- a/hw/arm/armv7m.c +++ b/hw/arm/armv7m.c @@ -256,6 +256,8 @@ static void armv7m_instance_init(Object *obj) object_initialize_child(obj, "nvic", &s->nvic, TYPE_NVIC); object_property_add_alias(obj, "num-irq", OBJECT(&s->nvic), "num-irq"); + object_property_add_alias(obj, "num-prio-bits", + OBJECT(&s->nvic), "num-prio-bits"); =20 object_initialize_child(obj, "systick-reg-ns", &s->systick[M_REG_NS], TYPE_SYSTICK); diff --git a/include/hw/arm/armv7m.h b/include/hw/arm/armv7m.h index e2cebbd15c..5c057ab2ec 100644 --- a/include/hw/arm/armv7m.h +++ b/include/hw/arm/armv7m.h @@ -43,6 +43,7 @@ OBJECT_DECLARE_SIMPLE_TYPE(ARMv7MState, ARMV7M) * a qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET). * + Property "cpu-type": CPU type to instantiate * + Property "num-irq": number of external IRQ lines + * + Property "num-prio-bits": number of priority bits in the NVIC * + Property "memory": MemoryRegion defining the physical address space * that CPU accesses see. (The NVIC, bitbanding and other CPU-internal * devices will be automatically layered on top of this view.) --=20 2.42.0